Jovian succeeded Julian II as emperor when the latter died of
battlefield wounds. The general realized that their army was on the brink of
falling apart under the pressures of renewed attacks by the Persians who were
deep within their own territory. Upon this analysis as well as the fact that
supply columns could never hope to reach them effectively, he settled a truce
with the Persians giving over all the territory the Romans had just won under
Julian. Jovian died on the return from this episode as a result of carbon
monoxide poisoning.